Description of problem:
python-virtualenv requires pkg_resources modules which is found in python-setuptools

Version-Release number of selected component (if applicable):
python-virtualenv-1.3-1.fc10

How reproducible:
Run the 'virtualenv' program without python-setuptools installed.

Steps to Reproduce:
1. Remove python-setuptools
   $ su -c "rpm -e python-setuptools"

2. Install python-virtualenv
   $ su -c "yum -y install python-virtualenv"

3. Attempt to run the virtualenv script.
   $ virtualenv --help
  
Actual results:

$ virtualenv --help
Traceback (most recent call last):               
  File "/usr/bin/virtualenv", line 5, in <module>
    from pkg_resources import load_entry_point   
ImportError: No module named pkg_resources

Expected results:
$ virtualenv --help
Usage: virtualenv [OPTIONS] DEST_DIR

Options:
  --version             show program's version number and exit
  -h, --help            show this help message and exit
  -v, --verbose         Increase verbosity
  -q, --quiet           Decrease verbosity
  -p PYTHON_EXE, --python=PYTHON_EXE
                        The Python interpreter to use, e.g.,
                        --python=python2.5 will use the python2.5 interpreter
                        to create the new environment.  The default is the
                        interpreter that virtualenv was installed with
                        (/usr/bin/python)
  --clear               Clear out the non-root install and start from scratch
  --no-site-packages    Don't give access to the global site-packages dir to
                        the virtual environment
  --unzip-setuptools    Unzip Setuptools when installing it
  --relocatable         Make an EXISTING virtualenv environment relocatable.
                        This fixes up scripts and makes all .pth files
                        relative


Additional info: